China has not condemned the US-Israel strikes on Iran. It has not supported them either. Beijing has issued carefully worded statements calling for restraint and dialogue while simultaneously accelerating its energy and trade ties with the surviving Iranian economy.
This studied neutrality is not accidental. China is the world's largest oil importer, Iran's largest trading partner, and a country that has spent decades building economic architecture specifically designed to reduce its dependence on the US-dominated global financial system. The Iran war is — paradoxically — both a risk and an opportunity for China.
China's Hormuz Exposure
China imports approximately 10–11 million barrels of oil per day. About 40% comes from the Gulf — Saudi Arabia, Iraq, Kuwait, UAE, Oman — and most of that transits through or near Hormuz. A full closure of the strait would be an economic emergency for China of the first order.
China has been building strategic petroleum reserves for exactly this scenario. Estimates suggest China can sustain roughly 90 days of full supply disruption from reserves alone. That is a meaningful buffer — but 90 days is not long enough if a conflict becomes prolonged.
The Trade Architecture China Is Building
Since 2022, China has been accelerating three parallel projects that reduce Hormuz dependence:
- Russia oil pipeline — the Power of Siberia pipeline now delivers Russian oil directly to China without any maritime route. Capacity is being expanded.
- Central Asian routes — Kazakhstan, Turkmenistan, and Azerbaijan offer pipeline routes that bypass Gulf shipping entirely.
- Iranian oil under sanctions — China has been the primary buyer of heavily discounted Iranian oil throughout the sanctions period. With Iran at war, this supply is uncertain — but also potentially available at extreme discounts through back-channels.
The Yuan Settlement Opportunity
Every barrel of oil that is sold outside the dollar system is a step toward the petroyuan — China's long-term ambition to have oil priced in renminbi. The Iran war, which has made the dollar-denominated global financial system look fragile to many developing countries, is accelerating conversations about alternatives.
Saudi Arabia has already conducted yuan-denominated oil trades on an experimental basis. Russia now demands payment in non-dollar currencies for its oil. If Iran (post-war) settles into a China-aligned economic orbit — paying for reconstruction with Chinese loans, trading in yuan, integrating into the Belt and Road — the petrodollar system loses a meaningful piece of its foundation.
What This Means for Markets
China's role in the Iran war aftermath will significantly determine the post-war economic landscape. If China mediates a ceasefire (which it has the relationships to attempt), oil falls sharply and China gains enormous diplomatic credibility. If China opportunistically expands economic ties with a weakened Iran while the war continues, the dollar-Yuan competition accelerates and US sanctions effectiveness degrades further.
For investors: watch the yuan exchange rate and China's foreign exchange reserves as leading indicators. If China is spending reserves to defend the yuan while simultaneously running a Hormuz supply disruption, that is the signal that even China's buffer is being tested.